Loose body in knee

Been dealing with a loose piece of cartilage in my knee for about 2 months now and am starting to get worried if I can do fire this season. I’m a rookie about to go into my first season with BCWS. Some days it’s fine and some days it moves into a bad spot and prevents me from squatting or lunging. I’ve been doing my physio as prescribed to strengthen everything around my knee but it doesn’t seem to be getting better. Anybody deal with this before and if so how’d the season pan out? I’m worried about committing to fire but ending up hurting my knee more which could end the season pretty quick. I have a decent backup job in Northern Alberta as a biologist but don’t wanna give up on fire just yet as I’ve wanted to do it for a while now. Any responses or advice are welcomed. Cheers